{
    "$schema":"http://json-schema.org/draft-03/schema#",


    "title":"point",
    "type":"object",
    "extends":{
        "$ref":"geometry.json"
    },
    "properties":{
        "x":{
            "title":"x",
            "type":"number",
             "required":true},
        "y":{
            "title":"y",
            "type":"number",
             "required":true},
        "spatialReference":{
            "$ref" : "spatialreference.json"}
    }
}